Home / 20,141.45-30,210.04-5,351.86

Finding the Fourth Proportional to 20,141.45, 30,210.04 and 5,351.86

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Solution

The fourth proportional to 20,141.45, 30,210.04 and 5,351.86 is: 8,027.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.45 : 30,210.04 = 5,351.86 : x
  2. Step 2: Convert to fraction form
    20,141.45/30,210.04 = 5,351.86/x
  3. Step 3: Cross multiply
    20,141.45x = 30,210.04 × 5,351.86
  4. Step 4: Simplify right side
    20,141.45x = 161,679,904.67
  5. Step 5: Solve for x
    x = 161,679,904.67/20,141.45
  6. Step 6: Final answer
    x = 8,027.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.